While this guide has been around for a bit, we thought it was worth pointing out in case you missed it. Driving around L.A. to get a feel for the different neighborhoods can be time consuming and you will still come away with just a partial picture. Airbnb has this useful neighborhood guide that includes numerous pictures of the area, a map, and hashtags that residents often use to describe the area.
https://www.airbnb.com/locations/los-angeles/neighborhoods